The battle to reduce your bike split has a whole new weapon: Felt's IA 10. Taking full advantage of Felt's wind tunnel expertise, the heart of this triathlon bike is an exceptionally aero, high-modulus carbon frame with deep-section frame tubes and Felt's own integrated stem and fork to pierce the wind. A pair of 35mm-deep Felt rims clean-up dirty air and reduce drag. With Shimano's 22-speed Ultegra Di2 electronic shifting at your fingertips, the IA 10 fires off shifts without breaking your cadence, while the bar-end shifters keep you in your aero tuck for maximum efficiency. And, since a comfortable rider is a strong rider, you're equipped with a fully adjustable aero seatpost, and Felt's Bayonet bar and f-bend extensions.